package cn.wen.springframework.context;import java.util.EventObject;/** * @ClassName: ApplicationEvent * @Author: 小飞 * @Date: 2023/3/28 22:11 * @Description: 提供 一套集事件注册、监听、触发为一体的事件实现 监听上下文 */public abstract class ApplicationEvent extends EventObject {    public ApplicationEvent(Object source) {        super(source);    }}